Convert cubic feet to UK gallons

1 ft³=6.22884gal (UK)

Use the converter below to change any cubic feet value into UK gallons instantly — with formula, conversion table, and real-world examples.

You have

Equals

6.228835

Conversion formula

Forward

UK gallons = cubic feet × 6.22884

Reverse

cubic feet = UK gallons × 0.1605

Example: 10 ft³ × 6.22884 = 62.2884 gal (UK).

About both units

From

Cubic Foot

ft³

The cubic foot equals 28.317 litres exactly. It is used in US HVAC and ventilation (CFM — cubic feet per minute), US natural gas billing, and appliance capacity (refrigerators, freezers). One cubic foot is roughly the volume of a standard shoebox times six.

Real-world: A typical US fridge is 20 cu ft (566 L). US HVAC flow rated in CFM. US residential gas billed per 100 cu ft (CCF).

Read full cubic foot reference →

UK Gallon

gal (UK)

The UK imperial gallon equals 4.54609 litres exactly. Defined in 1824 as the volume of 10 pounds of water at 62 °F. Still used for fuel economy reporting in the UK and some older industrial contexts. The UK imperial gallon is about 20% larger than the US gallon.

Real-world: UK petrol sold by litre since 1995, but economy is quoted in UK mpg: a diesel car at 60 mpg (UK) uses 4.7 L/100 km.

Read full uk gallon reference →

Cubic Foot to UK Gallon conversion table

Common cubic feet to UK gallons values for quick reference.

Cubic Foot (ft³)	UK Gallon (gal (UK))
1 ft³	6.22884 gal (UK)
2 ft³	12.4577 gal (UK)
5 ft³	31.1442 gal (UK)
10 ft³	62.2884 gal (UK)
20 ft³	124.577 gal (UK)
50 ft³	311.442 gal (UK)
100 ft³	622.884 gal (UK)
200 ft³	1,245.77 gal (UK)
500 ft³	3,114.42 gal (UK)
1,000 ft³	6,228.84 gal (UK)

Tips & common mistakes

Quick tips

1 ft³ = 28.317 L = 0.0283 m³.
CFM to m³/h: multiply CFM by 1.699.
1 m³ ≈ 35.3 ft³.

Avoid these

Confusing ft³ with ft² in US real-estate contexts.
Using 28 L instead of 28.32 L in precision HVAC calculations.
Mixing CCF (100 cubic feet) with CFM (cubic feet per minute) on utility bills.

Frequently asked questions

How many UK gallons in a cubic foot?

One cubic foot equals 6.22884 UK gallons.

How do I convert cubic feet to UK gallons?

Multiply the cubic foot value by 6.22884 to get the equivalent in UK gallons.

What is 100 cubic feet in UK gallons?

100 cubic feet equals 622.884 UK gallons.

Is a cubic foot bigger than a uk gallon?

Yes. 1 cubic foot equals 6.22884 UK gallons, so one cubic foot is larger.

How to convert cubic feet to UK gallons without a calculator?

Multiply by 6.23 for a quick estimate; use a calculator for precise results.

Related volume conversions

📊 See full comparison matrix →

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